Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · as published 2026-01-23 View official record Methodology

Covered recipient · General Payments record

LEON TSAI

Allopathic & Osteopathic Physicians Internal Medicine Gastroenterology

NPI
1912983883
CMS profile
267905
Location
TUCSON, AZ

General Payments · PY2018–2024

$7,859.39

  • Reported across 433 records
  • CMS publication 2026-01-23

Latest program year · PY2024

$1,175.01

55 records · 0 disputed

Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.

How these totals are calculated
  • The total is the sum of the General Payments records CMS published for the labeled program year(s), exactly as published. Nothing is estimated, weighted, or combined across categories.
  • General Payments only. Research and Ownership/Investment are separate datasets and are never summed with these figures; amounts are kept separate per program year.
  • Featured-page threshold (a presentation gate, not a judgment): records>=3 OR total>=100 (all years).
  • Methodology & Data — sourcing, labeling, and limitations.

By nature of payment

PY2024 · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $1,175.01 55

By paying entity

PY2024 · sorted by reported total

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2018 $1,235.37 92
PY2019 $773.95 50
PY2020 $778.20 39
PY2021 $1,307.95 66
PY2022 $1,531.93 74
PY2023 $1,056.98 57
PY2024 $1,175.01 55

Payment records · PY2024 (55)

Sorted by paying entity, then date · as published by CMS

Program year 2024 201820192020202120222023 Record-level detail is published for PY2024; earlier years are summarised in “By program year”.
Paying entity Amount Date Nature of payment Dispute status Published Record ID Source
ABBVIE INC. $26.23 01/09/2024 Food and Beverage Undisputed 01/23/2026 1106248485 CMS
ABBVIE INC. $23.89 01/30/2024 Food and Beverage Undisputed 01/23/2026 1106248487 CMS
ABBVIE INC. $25.35 02/02/2024 Food and Beverage Undisputed 01/23/2026 1106248489 CMS
ABBVIE INC. $18.78 02/29/2024 Food and Beverage Undisputed 01/23/2026 1106248491 CMS
ABBVIE INC. $17.49 03/05/2024 Food and Beverage Undisputed 01/23/2026 1106248493 CMS
ABBVIE INC. $25.42 04/05/2024 Food and Beverage Undisputed 01/23/2026 1106248495 CMS
ABBVIE INC. $26.58 05/21/2024 Food and Beverage Undisputed 01/23/2026 1106248497 CMS
ABBVIE INC. $23.48 06/03/2024 Food and Beverage Undisputed 01/23/2026 1106248499 CMS
ABBVIE INC. $19.40 06/07/2024 Food and Beverage Undisputed 01/23/2026 1106248501 CMS
ABBVIE INC. $23.02 06/20/2024 Food and Beverage Undisputed 01/23/2026 1106248503 CMS
ABBVIE INC. $10.62 06/28/2024 Food and Beverage Undisputed 01/23/2026 1106248505 CMS
ABBVIE INC. $22.26 07/23/2024 Food and Beverage Undisputed 01/23/2026 1106248507 CMS
ABBVIE INC. $23.30 07/29/2024 Food and Beverage Undisputed 01/23/2026 1106248509 CMS
ABBVIE INC. $13.57 09/12/2024 Food and Beverage Undisputed 01/23/2026 1106248511 CMS
ABBVIE INC. $26.63 10/16/2024 Food and Beverage Undisputed 01/23/2026 1106248513 CMS
ABBVIE INC. $22.30 11/19/2024 Food and Beverage Undisputed 01/23/2026 1106248515 CMS
ABBVIE INC. $13.73 12/04/2024 Food and Beverage Undisputed 01/23/2026 1106248517 CMS
ABBVIE INC. $21.61 12/16/2024 Food and Beverage Undisputed 01/23/2026 1106248519 CMS
Ardelyx, Inc. $13.55 01/22/2024 Food and Beverage Undisputed 01/23/2026 1146711821 CMS
Ardelyx, Inc. $13.17 02/26/2024 Food and Beverage Undisputed 01/23/2026 1146711823 CMS
Biocon Biologics Inc $23.04 12/05/2024 Food and Beverage Undisputed 01/23/2026 1154784842 CMS
Celgene Corporation $15.41 01/23/2024 Food and Beverage Undisputed 01/23/2026 1101138252 CMS
Celgene Corporation $16.42 03/12/2024 Food and Beverage Undisputed 01/23/2026 1101138256 CMS
Celgene Corporation $17.71 06/27/2024 Food and Beverage Undisputed 01/23/2026 1101138266 CMS
Celgene Corporation $13.61 09/19/2024 Food and Beverage Undisputed 01/23/2026 1101138270 CMS
Celltrion USA Inc. $45.40 11/07/2024 Food and Beverage Undisputed 01/23/2026 1075859259 CMS
EVOKE PHARMA, INC. $14.37 05/01/2024 Food and Beverage Undisputed 01/23/2026 1127776213 CMS
Ferring Pharmaceuticals Inc. $14.79 08/20/2024 Food and Beverage Undisputed 01/23/2026 1137515837 CMS
GENZYME CORPORATION $20.16 05/20/2024 Food and Beverage Undisputed 01/23/2026 1139681897 CMS
GENZYME CORPORATION $31.24 12/19/2024 Food and Beverage Undisputed 01/23/2026 1139681989 CMS
Gilead Sciences, Inc. $13.33 07/16/2024 Food and Beverage Undisputed 01/23/2026 1133790091 CMS
Gilead Sciences, Inc. $14.53 08/27/2024 Food and Beverage Undisputed 01/23/2026 1133790093 CMS
Gilead Sciences, Inc. $14.53 10/17/2024 Food and Beverage Undisputed 01/23/2026 1133790095 CMS
Intercept Pharmaceuticals, Inc. $18.64 02/20/2024 Food and Beverage Undisputed 01/23/2026 1113637340 CMS
Intercept Pharmaceuticals, Inc. $19.51 05/07/2024 Food and Beverage Undisputed 01/23/2026 1113637344 CMS
Intercept Pharmaceuticals, Inc. $19.15 11/05/2024 Food and Beverage Undisputed 01/23/2026 1113637348 CMS
IRONWOOD PHARMACEUTICALS, INC $15.20 02/29/2024 Food and Beverage Undisputed 01/23/2026 1153769534 CMS
IRONWOOD PHARMACEUTICALS, INC $21.77 07/30/2024 Food and Beverage Undisputed 01/23/2026 1153756012 CMS
Janssen Biotech, Inc. $21.81 08/12/2024 Food and Beverage Undisputed 01/23/2026 1078283895 CMS
Janssen Biotech, Inc. $15.37 09/24/2024 Food and Beverage Undisputed 01/23/2026 1078283759 CMS
Lilly USA, LLC $19.00 01/09/2024 Food and Beverage Undisputed 01/23/2026 1135130190 CMS
PFIZER INC. $15.38 01/16/2024 Food and Beverage Undisputed 01/23/2026 1131156187 CMS
PFIZER INC. $21.69 04/23/2024 Food and Beverage Undisputed 01/23/2026 1131319254 CMS
PFIZER INC. $23.80 09/26/2024 Food and Beverage Undisputed 01/23/2026 1131934334 CMS
PFIZER INC. $20.77 11/11/2024 Food and Beverage Undisputed 01/23/2026 1131206011 CMS
Phathom Pharmaceuticals, Inc. $37.06 04/25/2024 Food and Beverage Undisputed 01/23/2026 1151134534 CMS
QOL Medical, LLC $31.22 08/14/2024 Food and Beverage Undisputed 01/23/2026 1147726232 CMS
QOL Medical, LLC $30.00 10/30/2024 Food and Beverage Undisputed 01/23/2026 1147726234 CMS
QOL Medical, LLC $26.33 12/09/2024 Food and Beverage Undisputed 01/23/2026 1147726236 CMS
Regeneron Healthcare Solutions, Inc. $16.78 11/18/2024 Food and Beverage Undisputed 01/23/2026 1114225745 CMS
Takeda Pharmaceuticals U.S.A., Inc. $27.74 03/14/2024 Food and Beverage Undisputed 01/23/2026 1137689660 CMS
Takeda Pharmaceuticals U.S.A., Inc. $27.13 03/19/2024 Food and Beverage Undisputed 01/23/2026 1137689662 CMS
Takeda Pharmaceuticals U.S.A., Inc. $46.22 06/24/2024 Food and Beverage Undisputed 01/23/2026 1137689664 CMS
Takeda Pharmaceuticals U.S.A., Inc. $23.26 09/30/2024 Food and Beverage Undisputed 01/23/2026 1137689666 CMS
Takeda Pharmaceuticals U.S.A., Inc. $12.26 10/22/2024 Food and Beverage Undisputed 01/23/2026 1137689668 CMS

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-01-23
Program years on this page
2018, 2019, 2020, 2021, 2022, 2023, 2024
Source files
Dataset page · Bulk file · PY2018 , PY2019 , PY2020 , PY2021 , PY2022 , PY2023 , PY2024
Generated from
OP_DTL_GNRL_PGYR2024_P01232026_01102026.csv

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